Win a copy of Escape Velocity: Better Metrics for Agile Teams this week in the Agile and Other Processes forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Tim Cooke
  • Paul Clapham
  • Jeanne Boyarsky
Sheriffs:
  • Ron McLeod
  • Frank Carver
  • Junilu Lacar
Saloon Keepers:
  • Stephan van Hulst
  • Tim Moores
  • Tim Holloway
  • Al Hobbs
  • Carey Brown
Bartenders:
  • Piet Souris
  • Frits Walraven
  • fred rosenberger

a question about somebody's lock code

 
Greenhorn
Posts: 29
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I saw somebody's lock code here like this:
private Set set = Collections.synchronizedSet(new HashSet());
if(record == -1){
for(int i = 1; i<=recordCount; i++)
lock(i);
}else{
synchronized(set){
while( (set.contains(new Integer(record))) ){try{
set.wait();
}catch(InterruptedException e){}
}
set.add(new Integer(record));
//
}
}
I think the set.notifyAll() should be added to the comment to wake up other threads which are waiting on the set object, while the current thread can do something else. Am I missing anything here? Please.
 
michael opto
Greenhorn
Posts: 29
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Forget about it. I see now. I was thinking about something else. Sorry, please delete this post.
 
There were millions of the little blood suckers. But thanks to this tiny ad, I wasn't bitten once.
The trailboss has a kickstarter
https://coderanch.com/t/754577/Garden-Master-kickstarter
reply
    Bookmark Topic Watch Topic
  • New Topic